#244 Multi-Zone Automatic Temperature Control System
1895
The first automated temperature control system
In 1883 Warren Johnson gave up teaching to fully devote his time to researching and developing his ideas. He moved to Milwaukee and formed the Johnson Electric Service Company in 1885. In 1895, Johnson patented the pneumatic temperature control system. This allowed for temperature control on a room by room basis in buildings and homes. It was the first such device of its kind. By the early 20th century the Automatic Temperature Control System was being used in many notable places including the New York Stock Exchange, Palaces of Spain and Japan, West Point, the Smithsonian, the US Capitol Building, and the home of Andrew Carnegie.
Back in 1895 the Automatic Temperature Control System outlined the same design principles used in modern day temperature and climate control systems. A design that sustains relevance for over 100 years must be a true engineering marvel. The Automatic Temperature Control System established a great reputation for Johnson Controls. Even in the present day, Johnson Controls exhibits the enduring legacy of Warren Johnson and his inventions through its 140,000 employees and services evident in 200 million vehicles, 12 million homes, and 1 million commercial buildings.
Photo Caption Continued: Ceremony presenters and speakers included (left to right) Richard "Rocky" Marcoux, Commissioner, Milwaukee Department of City Development; Tom Fehring, Milwaukee ASME; Al Johnson, great-grandson of Warren S. Johnson; J. Lawrence Lee Ph.D., P.E., Chairman, ASME History and Heritage Committee; and Dave Myers, President, Building Efficiency, Johnson Controls.
Landmark Location
Johnson Controls
2022 W. Florist Ave.,
Glendale, Wisconsin
Visiting Info
Johnson Controls
2022 W. Florist Ave.,
Glendale, Wisconsin
Regular Hours: Monday through Friday 7:45am to 4:30pm
Closed Weekends and Holidays
Ceremony Notes
May 28, 2008